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Solve the equation for all values of 
x.

|3x-8|=5x
Answer: 
x=

Solve the equation for all values of x x .\newline3x8=5x |3 x-8|=5 x \newlineAnswer: x= x=

Full solution

Q. Solve the equation for all values of x x .\newline3x8=5x |3 x-8|=5 x \newlineAnswer: x= x=
  1. Consider Two Cases: We have the equation 3x8=5x|3x - 8| = 5x. To solve this, we need to consider two cases because the absolute value expression can be positive or negative.
  2. First Case: Non-Negative Expression: First case is when the expression inside the absolute value is non-negative, which means 3x803x - 8 \geq 0. In this case, we can drop the absolute value bars and solve 3x8=5x3x - 8 = 5x.
  3. Solve for xx: Subtract 3x3x from both sides of the equation 3x8=5x3x - 8 = 5x to get 8=2x-8 = 2x.
  4. Check x=4x = -4: Divide both sides by 22 to isolate xx, which gives us x=4x = -4.
  5. Second Case: Negative Expression: We need to check if x=4x = -4 satisfies the original equation 3x8=5x|3x - 8| = 5x. Substitute x=4x = -4 into 3x83x - 8 to get 3(4)8=128=203(-4) - 8 = -12 - 8 = -20. The absolute value of 20-20 is 2020, which is not equal to 5(4)=205(-4) = -20. Therefore, x=4x = -4 does not satisfy the original equation.
  6. Solve for xx: The second case is when the expression inside the absolute value is negative, which means 3x - 8 < 0. In this case, we solve the equation (3x8)=5x-\left(3x - 8\right) = 5x.
  7. Check x=1x = 1: Distribute the negative sign inside the parentheses to get 3x+8=5x-3x + 8 = 5x.
  8. Check x=1x = 1: Distribute the negative sign inside the parentheses to get 3x+8=5x-3x + 8 = 5x.Add 3x3x to both sides of the equation 3x+8=5x-3x + 8 = 5x to get 8=8x8 = 8x.
  9. Check x=1x = 1: Distribute the negative sign inside the parentheses to get 3x+8=5x-3x + 8 = 5x. Add 3x3x to both sides of the equation 3x+8=5x-3x + 8 = 5x to get 8=8x8 = 8x. Divide both sides by 88 to isolate xx, which gives us x=1x = 1.
  10. Check x=1x = 1: Distribute the negative sign inside the parentheses to get 3x+8=5x-3x + 8 = 5x. Add 3x3x to both sides of the equation 3x+8=5x-3x + 8 = 5x to get 8=8x8 = 8x. Divide both sides by 88 to isolate xx, which gives us x=1x = 1. We need to check if x=1x = 1 satisfies the original equation 3x8=5x|3x - 8| = 5x. Substitute x=1x = 1 into 3x+8=5x-3x + 8 = 5x11 to get 3x+8=5x-3x + 8 = 5x22. The absolute value of 3x+8=5x-3x + 8 = 5x33 is 3x+8=5x-3x + 8 = 5x44, which is equal to 3x+8=5x-3x + 8 = 5x55. Therefore, x=1x = 1 does satisfy the original equation.

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